Neptunite and Hematite Physical Properties

Neptunite

Hematite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.19-3.235.00-5.30

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

{110} good

None, may show partings on {0001} and {10 1 1}

1.7 Mohs Hardness

5-66

2 10

1.8 Chemical Composition

KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Fe 2O 3Arthur Thomas , Gemstones (2009)

Neptunite and Hematite Chemical Formula

While comparing Neptunite and Hematite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Neptunite and Hematite chemical formula.

Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Neptunite and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Neptunite and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Hematite Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 5.00-5.30 whereas that of Hematite is 5.00-5.30.